Patents by Inventor Franz ALFERT

Franz ALFERT has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12343670
    Abstract: A method and a device for determining the absolute humidity of a gas sample of a process gas are disclosed. The process gas is filtered for purification, before the gas sample obtained in this way is directed via a chilled mirror hygrometer. The process gas is withdrawn via an inner tube, which is located in a filter cartridge. The filter cartridge projects into a gas flow of the process gas. The inner tube has openings via which a gas sample that is representative over the length of the filter cartridge can be obtained and which allows for an even backwashing of the filter cartridge.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: July 1, 2025
    Assignee: ATEX Explosionsschutz GmbH
    Inventor: Franz Alfert
  • Publication number: 20240416269
    Abstract: A method and a device for determining the absolute humidity of a gas sample of a process gas are disclosed. The process gas is filtered for purification, before the gas sample obtained in this way is directed via a chilled mirror hygrometer. The process gas is withdrawn via an inner tube, which is located in a filter cartridge. The filter cartridge projects into a gas flow of the process gas. The inner tube has openings via which a gas sample that is representative over the length of the filter cartridge can be obtained and which allows for an even backwashing of the filter cartridge.
    Type: Application
    Filed: November 11, 2022
    Publication date: December 19, 2024
    Applicant: ATEX Explosionsschutz GmbH
    Inventor: Franz Alfert
  • Patent number: 8752569
    Abstract: A shutoff fitting as protection device for blocking a fluid flow through a conduit includes a pneumatic adjustment device, and a hybrid gas generator operably connected to the adjustment device. The hybrid gas generator has a reaction chamber with a gas generator and a pressure gas chamber containing compressed gas and arranged adjacent to the reaction chamber. An inlet diaphragm separates the reaction chamber from the pressure gas chamber and can be penetrated, when the gas generator is activated, so that a passage is established from the reaction chamber to the pressure gas chamber. An outlet diaphragm closes the pressure gas chamber and is rendered ineffective through destruction when the gas generator is activated to enable compressed gas to flow into the adjustment device.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: June 17, 2014
    Inventor: Franz Alfert
  • Publication number: 20120193557
    Abstract: A shutoff fitting as protection device for blocking a fluid flow through a conduit includes a pneumatic adjustment device, and a hybrid gas generator operably connected to the adjustment device. The hybrid gas generator has a reaction chamber with a gas generator and a pressure gas chamber containing compressed gas and arranged adjacent to the reaction chamber. An inlet diaphragm separates the reaction chamber from the pressure gas chamber and is can be penetrated, when the gas generator is activated, so that a passage is established from the reaction chamber to the pressure gas chamber. An outlet diaphragm closes the pressure gas chamber and is rendered ineffective through destruction when the gas generator is activated to enable compressed gas to flow into the adjustment device.
    Type: Application
    Filed: August 3, 2011
    Publication date: August 2, 2012
    Applicant: Dominic Becker
    Inventor: Franz ALFERT